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The SALES table has columns PROD_ID and QUANTITY_SOLD of data type NUMBER. Which two queries execute successfully?
Correct Answer: A,B
When crafting SQL queries, especially those involving aggregate functions and GROUP BY clauses, correct syntax and logical order of SQL clauses are crucial. Here's why A and B are the correct answers: * A: Correct. This query uses COUNT() as an aggregate function correctly with a GROUP BY clause. It counts the number of prod_id entries for each product where quantity_sold exceeds 55000, grouped by prod_id. * B: Correct. This query selects prod_id for groups having more than 10 rows where quantity_sold exceeds 55000. The GROUP BY and HAVING clauses are used correctly. * C: Incorrect. The WHERE clause should be placed before the GROUP BY clause. The correct order of clauses is essential for query execution. * D: Incorrect. This query attempts to use an aggregate function (COUNT(*)) in the WHERE clause and improperly in the GROUP BY clause, which is not allowed. * E: Incorrect. Similar to D, it incorrectly attempts to use COUNT(*) in the WHERE clause, which is syntactically incorrect.